Economic and social pressures are spurring the study of alternate weed management strategies such as development competitive crop cultivars, capable being used under an integrated plan. The primary objective this research was to determine whether western Canadian spring wheat ( Triticum spp.) cultivars differ in their ability compete against model weeds those differences were expressed when cha...

Climate warming may drive invasions by exotic plants, thereby raising concerns over the risks of invasive plants. However, little is known about how climate warming influences the growth and competitive ability of exotic plants from their home and introduced ranges. We conducted a common garden experiment with an invasive plant Centaurea maculosa and a native plant Poa pratensis, in which a mix...

The relationship between numerical advantage and competitive ability is a fundamental component in contests between groups of social animals. An individual's ability to correctly assess the numerical state of its group is of vital importance. In addition to numerical dominance, the group's fighting ability also plays an important role in competitive interactions. By staging experimental fights ...